River fish generally have an earthy odor, because river fish are growing in the ponds, rivers and lakes with more humus. Because of the more humus, suitable for the propagation and growth of actinomycetes, actinomycetes through the gills invade the blood of the fish and secrete a kind of brown substance with a bad smell (i.e., earthy smell). Freshwater fish such as carp, grass carp, silver carp and other protein-rich, high nutritional value, taste is also very delicious, but these river fish often with the earthy flavor. Here are a few ways to get rid of the earthy flavor.

1, the river fish cut belly wash, put in cold water, and then to the water into a small amount of vinegar and pepper, or put some bay leaves. After this treatment, the river fish has no earthy odor.

2, available half a couple of salt and 5 pounds of water, the live fish soaked in salt water, salt water through the two gills immersed in blood, an hour later, the smell of earth can disappear. If it is a dead fish, put in salt water soak for two hours, can also remove the earthy flavor.

3, carp on both sides of the back in two white tendons, which is the manufacture of special fishy things, pay attention to the slaughter of the two white tendons drawn off, cooked after there is no fishy.

4, slaughter fish, fish blood can be rinsed as much as possible, cooking and then add onions, ginger, garlic and other seasonings, the earthy flavor can basically be removed.

Fish food is rich in protein, once contaminated by tired bacteria, its protein is easily decomposed into trimethylamine, hexahydropyridine, aminopentanal and aminopentanoic acid, etc., and these substances will send out unpleasant fishy odor.

How to make fish not fishy? After cleaning the fish, fry it in oil first and pour out the remaining oil after frying. When the pot is hot, slightly add some wine (preferably yellow wine) and vinegar, cover the pot, about a few dozen seconds, and then uncover the pot, the fishy flavor is removed. In addition, plus soy sauce and other seasonings cooking, you can make a variety of delicious fish products.

Why can you add wine and vinegar to remove the fishy odor? Because wine contains a certain amount of alcohol, alcohol is a very good organic solvent. Trimethylamine, etc. can be dissolved by alcohol and evaporate with alcohol as it is heated. In addition, the alcohol in the wine and vinegar in the acetic acid can also generate aromatic flavored fat, increasing the freshness of fish food.